Improvement in earth-augers



v eral borers and guide parts, if necessary, on

and then pointed out iu the claims.

, other part of the auger.

UNITED STATES WASHINGTON SMITH', JONES,

IMPRCVEMENT IN OF MERIDIAN, MISSISSIPPI.

EARTH-AUGERS.

Specification forming part of Letters Patent No. 154,679, datedfSeptember 1, 1574 application filed January 17, `18'74.

To all lwhom it may concern:

Be it known that I, WASHINGTON S. JONES, of Meridian, in the county of Lauderdale and State of Mississippi, have invented a new and Improved Earth-Auger, of which thefollowing is a specification:

In the accompanying drawing, Figure l represents a side elevation of my improved earthauger; Fig. 2, a vertical central section on the line c c, Figs. 3, 4, and 5 and Figs. 3, 4, and 5, respectively, horizontal sections on the lines w y y, and z z, Fig. l.

Similar letters of reference indicate corresponding parts.

The objectof my invention is to construct an earth-auger for boring Wells and for other purposes, which does very effective work, and allows the replacing or adjusting of the sevaccount of injuries, they being at the same time irmly applied to the shaft, and of strong and durable' construction.

The invention will first be fully described,

In the drawing, A represents the auger shaft, to which the borer-plates are attached. Shaft A is made of the usual size and mate rial for boring wells, and has screwed into its lower end the borer-bitB, of any suitable shape, so that the Same may be readily taken out and repaired Without interfering with any The bit B cuts into the ground, breaking way for the lowerlld upper borer-plates C, which are frmly"at tached to the shaft at suitable distances from each other, while the guide drum or band D serves to guide the shaft in straight direction. The lower borer-plate Cr is applied immediately above bit B, and formed of two syln metrical halves of cast-iron, or other suitable material, of the required strength and spiral inclination. These halves are connected around recessed part a of the shaft having a smaller diameter by means of semicircular collar eX- teusions G1, which embrace the recessed shaft, and are rmly attached thereto by a sleeve, U2. The sleeve Cz is slipped over the collars C1, and keyed to the shaft by cross-pin b, which passes Vcentrally through shaft A, and

over corresponding recesses b at the upper end of sleeve C2. The lower end of shaft A is made of square shape below the recessed part a, and the plates C cast in similar shape, by which they close around the shaft without being detachable in downward direction. A cutter bit or blade, d, is attached to the diametrically-opposite end of eachhalf of plate C by slots d', and set screws or taps e being thereby adjustable on the same to various depths, according to the nature of the. stratums to be peuetrated. A second screw-plate, C, is attached -to the shaft A at a suitabledistance above the end plate, being also made of symmetrical halves, and applied rmly by a sleeve and cross-pin to a recessed part of the shaft in similar manner as the end plate. The inclination or rise of the upper screw-plate C is, however, of a less degree than that of the lower plates, and the same is provided with flat semicircular cutter bits or blades f extending along the lower part of the V-shaped halves of plates (l, being applied to them by. bolts or rivets, as shown in Fig. 4. The upper plate is not required to be of the same strength as the end or 1n ain borer-plate, as it `serves mainly to takev off the weight of the earth from the lower plate, and lift a greater 4quantity on hoisting the auger. The detachable guide drum or band D is *also produced of two equal parts. constructed of V-shaped or pointed plates Dl with collar extensions, and applied consecutively to the various recessed parts of the shaft above the plates C by sleeve and crosspin, as shown in Figs. 2 and 5. Strong radial arms g are applied to each plate D', and the semicircular band or drum h, having the same radius as that of the lower plates, suitably and firmly connected to their ends. The ends of one half-drum h are provided with stationary sleeves h1, into which projecting parts h2 of the ends of the corresponding half-drum h fit, producing thereby on the attaching of both parts a full drum for guiding the auger in the required straight direction.

'Ihe guide-drum is transferred with the increasing depth ofthe borer-plates to the upper part of the shaft, and the straight direction of the auger easily controlled.

The easy and convenient manner of detaching every part of the borer-plates or drum makes repairs less expensive, quickly attended to, and thereby the Whole auger more serviceable and useful.

Having thus described my invention, I claim as nenr and desire to secure by Letters Patentl. The combination of the screw-plate C, made of symmetrical halves, which are provided With semicircular collars G1 with the recessed shaft A, fastening-sleeve G2, and crosspin b, for attaching the plate-sections firmly to the shaft and makin g them easily detachable, in the manner and for the purpose described.

2. The combination of a lower stronger borer-plate of greater inclinatiomwith a second lighter borer-plate of less inclination, ap

radial arms g, and selnicircular bands h attached to them, which are connected by end sleeves h1 and forward-extendin g parts 11,2,substantially as and for the purpose described.

WASHINGTON SMITH JONES.

, Witnesses:

J. C. 000K, T. H. WARREN. 

